Inflating valve



F. E. HANSEN July `l0, 1928, 1,676,777

I NFLAT I NG VALVE Filed Dec. 26, 1924 A rToR/vfn Patented July l0, 1928. A

i am@ Stem YPMEN"f-Ierrlce.

ram) HANSEN, or LAKEWooD,oi1ro, Ass/rGNoR'L'ro 'rt-Hr. agissait MANUFACTRING COMPANY, or oLEvnLANp, oHo, a eortroRA'rIoNor c1110. K

IN'FLA'rING vAnvE.

Application filed December 26, 1924.`V Serial No."758,057.y

f Thisinvention relates to inliating valves such as are 'used for inflating pneumatic tires, andhas for its object the provision of adevice of this character consisting of a minimum number of parts which parts shall be reelrom leakage' otair and also free from injury by reason of wear. Valved ypipe connections have long been known havmoprovisions for openinga fluid passage upbon the establishment oli' the desired connection and such have often been'used for inflating pneumatictires, but in practically all instances a rubber or soft packing has been so flexed, bent, compressed, rubbed, or otherwise mistreated as-to become worn and useless after a comparatively short life. An

. important feature of my invention is the construction of the valve in such wise that the opening and closingV movements of the same are effected without any substantial flexing, displacement, or wear-.of any 'soft packing, and without bringing such packing intoV contact Vwith any inserted member,

vwhile at they sametime being leakage free when not in use and substantially free from leakage while in use.

. In the drawings accompanying and forming a-part of this application'l haveshown `certain illustrative embodiments of my inventive idea drawn to considerably enlarged scale. vF ig. 1 is a longitudinalv sectional view through a. hose coupling embodyingmy improvements, showing the valve as seated and a tire valve in a position to enter the coupling; Fig. 2 is a sectional view ofV the parts corresponding toy the line 22 of Fig. 1 showing the coupling-as applied to vthe tire valve, and thev air valve inopenfpositions; Fig. 3 isa. perspective view of the air valve; Fig. l is a perspective view of the packing member; and Fig. 5 shows a modifiedform ofcasing.y V ,f

The body of the' coupling consists .of a casting having ahead land a neck 2,' the llattercarryin'g the nipple iytowhich a suitlable air hose is attached] Formed in one side of the head is ajthreaded recess l which merges with al cylindrical counterbore 5 which in-` turn merges vwith a chamber 6, the chamber communicating with a duct `7 extending through the stem. ySeated inthe counterbore 5 is a flat circular washer 8 of soft rubberor somej substance having the essential qualities of rubber. This washer is Vpreferably formed at each margin with a lateral. projecting `rib Q ;asjshown, the

tei-bore being suitably recessedfor the same; and threaded in theraperture t isarnutl() which grips this `washer tightly in leakage preventing relation.- .This vnut is formed Alill with an vaxial" bore 11 of asiZeto receive" the diameter of the chamber 6 and the washer S is or'medrwith acentra-l aperture .15.still' smaller than the. borej 1-1 and .mounted in this aperture is a `valve memberrshown in 'perspective in.. Fig.v` `3. This member comprises a -cylindrical' shank y16. fitting Y loosely inthe aperture 15, ahead Y1 7 at one-endof said shank and having a; 'flat Aface `adj acent to saidshank, the oppositejside of' the heady beinggradually rounded, and a circumferential flange 18 spaced from said head soas to underlie theportion of the washer imme diate'ly adjacent -the aperture.f Below this flange the valveis provided withjan exten* sion 19, preferably of slightly tapered form,

ladapted to entervthe end ofthetire valve. `The lengthof the shank 16 is slightly greater-than the thickness of the washer as shown inl Fig.: 1, Vthus facilitating the assembling of' the parts since the valvegmember zis applied to the washer like a 'collar button to a button hole; the .flange 18 must be loosein the bore 11,1 although the. upper end of .the '1 bore may, if desired, be flared or recessed slightly to receive the same; and the nipple 19 enters/ the ltirefvalve casing 12 substan-` vtiallyin leak-.p roofrelation, the end of. the

entering member being seated `squarely against the outer face `ofthe flangel.r 1 The shank 16 and its extension 19 are formed with a longitudinal passageway 20 .which merges with oneor;more lateral ports 21 -immediately beneath the head 17, this` passageway 20 beingfol" a size to .receive freely the `stem 22 of the valve member carriedbyfthetire. This Avalve stem. is customarily formed a short. distance from-.its

.end with opposed wings 24 ,inade'by pinching the metal of the stemand the diameter of'thepassage 2O is so chosen'as to engage these wings and displace the stemflengthw1se. .1.. When thevalveisfclosed as shown in Fig. 1.v the `head 17 is seated flat upon the upper face of the washer, this flat relation being preserved at all times regardless of the fluid pressure, by reason of the factthat the diameter of the head is greater than that of the bore 11. Therheight of the chamber 6 andthe thickness 'of' thehead 17 are so chosen that when the-valve is opened as shown in Fig. 2 the flange 18 presses upon,

' the bottom of the washer only gently and preferably not enough to deflect it more than a barely observable amount. This enables the air ypressure actingupon the top of the washer .to yIforce it into tight sealing relation with the .upper face of the flange 18,

thus lpreventing leakage outside of the tire valve, While the `engagement of the tire valve with the nipple19 .and flange V18 .prevents the occurrence of any appreciable leakage at this point.v The raising of the fliead 17 from the washer permits access of air fto the port 21 and lthence to the tire valve.V` No deformaton -of the packing. in

l excess of'that described can loccursinfce .the

fmovement 'ofthe valve is arrestedrby .the engagement of the head 17 with the top of the chambera-ndno force which the operaytor can `exert will injure the parts. Owing tothe Vrounding vshape of the head 17 the valve can Itilt sidewise,- a smallv amount! if 'necessary to align `itself withk the tire valve as thebore'lfl becomes worn. f n

In Fig. 5 -Iyhave shown a slightly modified construction wherein the bore llais formed directly tin the-head 1', the samevsoft washer S'being usedjbutfits recess .5tl opening in the opposite direction. lThe top of the chamber is closed by a plug l30', a yserrated washer 31 or other suitable expedient being employed yto afford Vthe `necessary clamping -o'f the soft washer without im pairing communication between the chamber andthe passage 7. :Inthis case I-have "shown the Vplug as formed vwith a rounded engage the flat or concave valve rthese Vfeatures can be used without the other and-that many changes in detail can vbe madein the design and construction with-V Y out departing'frornmy inventive idea.

y' Having thus'described my invention'what 41. An inflating valve` for tires comprising Aa chambered* head having a bore adapted to receive*slidablythe end portion ofa valve signature.

stem, a softwasher inside said head and having an' aperture registering with said bore, and a one piece, all metal valve mem- Aber having'a shank traversing said aperture,

a 'head overlying said washer and a flange underlying said washer, said shank having a length between said headand said flange eX- ceeding the thickness of said washerrby approximately the distance between the head and chamber wall when the vvalve is closed,

and having apassageway therein,l said head being larger than said bore and said flange being smaller than said bore and slidable f therein.

2. An inflating valve for tires comprising a chambered head having a vbore adapted to receive slidably the end portion o'f a valve stem, asoftwasher .inside said head and having an aperture registering with saidv v bore, and a onepiece, all metal valve'member having aV shank traversing said aperture, a head overlying said washer `andina flange .underlying said washer,.said head heilig same` when closed. andfsagid llange being ylarger thanvsaid aperture so ,as .to engage the washer when the valve is opened, said yflange being smallerthan. said bore and slidable `therein and vadapted to 'be seated difrectly on the end of a'tire valve, thecfparts ,larger than said bore so as .to overliethe being so designed that the valve headenn .gages the chamber'top substantially at the same time that said flange engages said therein. y

3. vIn an inllating valve for tires, in combination, a chambered-head having a bore ladapted to receive 4slidably the'end portion of a'valve stem, a soft, .flat washer Ain said head and vhaving an aperture registering with said bore, anda one-piece,'a1lmetal :valve member having a shank traversing said aperture, a headoverlying saidwasher and a flange underlying said washer, said shank having therein a longitudinal passage and a lateralpQrt, the exterior diameter of saidV shankbeing less than that of said aperture, 'and thediam'eter of said head :being greater'than that of said" bore, said :flange being smaller than said "bore and slidable therein, and said shank having anextension beyond said flangeadapted to enter the' end ofl said 'valve stem to permitsaid flange tol be seated uponthetop of said stem, the distance between said valve head and the vadj-a- -cent wall of the chamber being such as to cause contact therebetween' substantially at the same time that said llange engagessaid washer.

In testimony whereof, I hereunto allix `my FRED E. HANSEN.

Y washer, 'said :shank having an air passage loo 

